Meet B.B. Link, the adapter that connects iPhones and iPads to Kenwood TH-D75 and D74 radios. With it, iOS applications like RadioMail can fully utilize the radio's built-in KISS TNC packet modem. Plug it into the USB-C port of the phone, turn your radio on, and you're set.
This adapter only works with certain Kenwood radios, iOS devices and apps. Double-check you've got the right gear. You'll need:
Note: While B.B. Link is designed to plug directly into USB-C, beware that the USB-C connector on the TH-D75 won't power the adapter. The radio does not act as a power delivery host. If you want to use the adapter with a previous generation iPhone that lacks USB-C, a portable charge power bank can be used instead.
Some phone cases may interfere with the adapter. The adapter provides about 2mm of clearance when plugged in. If your case is unusually thick, you may need to remove it for a proper fit.
Install the B.B. Link Configurator from the App Store
Get the Operator Manual pdf file